• Berakhot 40a records that the man of bread (parnasah) and the man of Torah should not be separated — Ecclesiastes 11:1 "cast your bread upon the waters, for you will find it after many days" is the Talmudic delayed-return investment doctrine: the Sitra Achra operates on short-cycle returns and cannot model the long-arc dividend that Torah-aligned generosity generates, making the "cast bread" strategy a fundamentally counter-Sitra Achra economic posture.
• Avot 2:20 (Rabbi Tarfon: "The day is short, the work is much, the workers are lazy, the reward is great, and the Master of the house is pressing") maps onto Ecclesiastes 11:4 "whoever watches the wind will not sow, and whoever looks at the clouds will not reap" — the Talmudic anti-paralysis doctrine: the Sitra Achra uses condition-perfection waiting as a tactic to prevent the warrior from ever beginning; Rabbi Tarfon's urgency is the counter.
• Shabbat 32a records the importance of checking mezuzot when affliction comes — Ecclesiastes 11:9 "rejoice, O young man, in your youth, and let your heart cheer you in the days of your youth. Walk in the ways of your heart and the sight of your eyes" — followed immediately by "but know that for all these things God will bring you into judgment" — is the Talmudic joy-within-accountability framework: the Sitra Achra offers the first part without the second; the Torah offers both as an integrated system.
• Sanhedrin 91b uses Ecclesiastes in resurrection debates — Ecclesiastes 11:5 "as you do not know how the spirit comes to the bones in the womb of a woman with child, so you do not know the work of God who makes everything" is the Talmudic meta-uncertainty immunity: the warrior who is comfortable with not knowing the divine mechanism cannot be paralyzed by the Sitra Achra's false certainties about divine absence or indifference.
• Berakhot 55b teaches that one who sleeps in a house without a mezuzah is exposed to harmful spirits — Ecclesiastes 11:10 "remove vexation from your heart, and put away pain from your body, for youth and the dawn of life are vanity" is the Talmudic psycho-somatic maintenance protocol: the warrior who carries unresolved distress creates the physiological opening that the Sitra Achra's night-forces exploit, and the deliberate release of vexation is therefore an active defense posture.